“The Smashing Machine,” out October 3, comes from writer/director Benny Safdie, who marks his solo film directorial debut with the movie. He is best known for working alongside his brother Josh, co-directing the acclaimed “Uncut Gems,” among other films.

Dwayne Johnson stars as former wrestler and UFC star Mark Kerr in a new trailer for Benny Safdie's "The Smashing Machine."

Dwayne Johnson is playing MMA and UFC fighter Mark Kerr in the biopic "The Smashing Machine."Johnson looks unrecognizable in the movie, appearing to wear a wig and prosthetics."The Smashing Machine," written and directed by Benny Safdie,